android - Activity 从后台返回时自动关闭

Question

在我的应用程序中，当我从后台返回时，我的 Activity 会自动关闭，并且它始终显示以前的 Activity 。示例:我从 Activity A 启动应用程序 > 然后转到 Activity B > 然后是 Activity C 现在我把我的应用程序放在后台然后来然后我回到前台 C Activity 自动关闭它显示 Activity B. 请帮助我它是一个大我正在处理现有代码的项目。我不知道那里设置了什么属性。我已经检查了应用程序中各处的 onPause() 和 onResume() 方法，没有任何东西可以关闭 Activity 。

public class EnterOtpActivity extends ChoosePhotoBaseActivity {
private ActivityEnterOtpBinding mBinding;
private EnterOtpModel model;
private String name;
private String prefix;
private String phone;
private String password;
private int spinnerPos;
private UserApi.FacebookLoginDetails fbLoginDetails = null;

@NonNull
@Override
protected Map<ImageView, Transformation<Bitmap>> getImageViewsMap() {
    return null;
}

@Override
protected void handleLoadedFile(@NonNull File imageTempFile) {
    imageCropped(Uri.fromFile(imageTempFile));
}

public void imageCropped(@NonNull Uri croppedImageUri) {
    model.mEditAvatarUri = croppedImageUri;
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mBinding = DataBindingUtil.setContentView(this, R.layout.activity_enter_otp);
    mBinding.setModel(model = new EnterOtpModel(this, mBinding));
    Bundle bundle = getIntent().getExtras();
    if (bundle != null) {
        if (bundle.containsKey(BundleKeyUtils.REGISTRATION)) {
            UserDetailsForOTPVo userDetailsForOTPVo = (UserDetailsForOTPVo) bundle.getSerializable(BundleKeyUtils.REGISTRATION);
            name = userDetailsForOTPVo.getName();
            prefix = userDetailsForOTPVo.getPrefix();
            phone = userDetailsForOTPVo.getContactNumber();
            password = userDetailsForOTPVo.getPassword();
            spinnerPos = userDetailsForOTPVo.getSpinnerPosition();
            model.setContactNumber(prefix, phone);
        } else if (bundle.containsKey(BundleKeyUtils.FB_REGISTRATION)) {
            fbLoginDetails = (UserApi.FacebookLoginDetails) bundle.getSerializable(BundleKeyUtils.FB_REGISTRATION);
            prefix = fbLoginDetails.getPhone_country_code();
            phone = fbLoginDetails.getPhone();
        }
    }
    mBinding.editOtp.setFilters(new InputFilter[]{new InputFilter.LengthFilter(4)});
    model.setTimer();
    setContinueAction();
    otpTextWatcher();
    setOnOtpRequest();
    File f = new File(getApplicationContext().getCacheDir(), "temp");
    Uri imageUri = Uri.fromFile(f);
    model.mEditAvatarUri = imageUri;

    mBinding.textContinue.setEnabled(false);
}

private void setOnOtpRequest() {
    mBinding.textOTp.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            showOTPDialog();
        }
    });
}

private void setContinueAction() {
    mBinding.textContinue.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mBinding.textContinue.setVisibility(View.INVISIBLE);
            mBinding.progressContinue.setVisibility(View.VISIBLE);
            mBinding.imgvArrow.setVisibility(View.INVISIBLE);
            if (fbLoginDetails == null) {
                model.onContinueAction(prefix, phone, password, name, mBinding.editOtp.getText().toString(), spinnerPos);
            }else {
                //TODO FB web call
                fbLoginDetails.setOTP_code(mBinding.editOtp.getText().toString());
                model.onFbLoginAction(fbLoginDetails, () -> {
                    mBinding.textContinue.setVisibility(View.VISIBLE);
                    mBinding.progressContinue.setVisibility(View.INVISIBLE);});
            }
        }
    });
}


public void otpTextWatcher() {
    mBinding.editOtp.addTextChangedListener(new SimpleTextWatcher() {
        @Override
        public void onTextChanged(@NonNull String newText) {
            super.onTextChanged(newText);
            if (newText.length() == 4) {
                mBinding.textContinue.setEnabled(true);
                mBinding.textContinue.setBackgroundResource(R.drawable.button_background_selector);
            }else {
                mBinding.textContinue.setEnabled(false);
                mBinding.textContinue.setBackgroundResource(R.drawable.bg_rounded_button_light_orange);
            }
        }
    });
}

public void showOTPDialog() {
    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(new ContextThemeWrapper(EnterOtpActivity.this,
            R.style.DialogDark));
    String meddleD = getResources().getString(R.string.dialog_msg_sms_middle);
    alertDialogBuilder.setMessage(getResources().getString(R.string.dialog_msg_sms_will_be) +" "+ prefix + phone +meddleD+getResources().getString(R.string.dialog_is_this_number_correct));
    alertDialogBuilder.setCancelable(false);
    alertDialogBuilder.setPositiveButton(R.string.fragment_contacts_invite_sms_ok, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
            dialog.dismiss();
            mBinding.textOTp.setVisibility(View.INVISIBLE);
            mBinding.progressLogIn.setVisibility(View.VISIBLE);
            mBinding.editOtp.setText("");
            model.reSendOtpRequest();
        }
    });
    alertDialogBuilder.setNegativeButton(R.string.edit, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {

            dialog.dismiss();
            finish();
        }
    });
    alertDialogBuilder.show();
}

//disable back button

@Override
public void onBackPressed() {
    // do nothing
}

@Override
protected void onPause() {
    super.onPause();
}

@Override
protected void onResume() {
    super.onResume();
}

Answer 1

我在我的代码中找到了罪魁祸首，实际上在之前的实现中，他们在 Manifests.xml 中为该 Activity 添加了 noHostory="true"，这就是它关闭的原因。